Browser Checks
Two free checks, no install and no sign-up. Open the one you need in the profile you're checking and click the button.
Browser fingerprint check
What a site learns about your computer and, above all, whether that information contradicts itself. Three checks: address country vs. time zone, the values in the tab vs. the background process, and the sign of a controlled browser.
Computed entirely in your browser. One request goes out — to our own domain, for the exit address and country.
WebRTC leak check
Whether your real address is visible behind the proxy. WebRTC is a separate channel for calls and video; it can connect directly, and then the site gets your real IP no matter how you've configured the proxy.
This one needs a third-party STUN server, and the page says which one and why: the browser only learns its own external address from it.
Why We Don't Show an "Anonymity Percentage"
Almost every checker draws up a number like that, and it means nothing: folding unrelated signals into one figure means inventing a weight for each of them. A single value almost never gives a person away — millions of machines report the same thing. What gives it away is contradictions — those are what we check, calling each one by its name.
A tidy number reassures or scares you, but it doesn't say what to fix. Our checks do.